h1 {
font-size: 18px;
font-family: Arial, Helvetica, sans-serif;
}
h2 {
font-size: 16px;
font-family: Arial, Helvetica, sans-serif;
}
h3 {
font-family: Arial, Helvetica, sans-serif;
font-size: 13px; font-weight: bold; 
}

.jumbotron h1 {
font-size: 24px;
font-family: Arial, Helvetica, sans-serif;
}
h2 {
font-size: 24px;
font-family: Arial, Helvetica, sans-serif;
}
h3 {
font-family: Arial, Helvetica, sans-serif;
font-size: 13px; font-weight: bold; 
}